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CVE-2026-18430 HumHub 1.18.4 - Stored XSS in comment-deletion notifications through unescaped administrator reason

🗓️ 19 Aug 2026 15:52:49Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

HumHub 1.18.4 stored XSS in comment-deletion notification reason allows admin-injected script execution.

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21 Aug 2026 03:46Current
5.1Medium risk
Vulners AI Score5.1
CVSS 47.2
4